Motor oil, with a viscosity of 0.250 Ns/m2, is flowing through a tube that has a radius of 3.00 mm and is 1.00 m long. The drop in pressure is 200 kPa. What is the average speed of the oil?
A) 0.800 m/s
B) 0.900 m/s
C) 1.00 m/s
D) 1.10 m/s
E) 1.20 m/s
B
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Three objects experience interactions. Object A has mass, object B has electrical charge, and object C has both mass and electrical charge. Object A and object B have a rope connected between them. Which of the following statements are true?
A. the electrical force on A due to B has the same magnitude as the gravitational force on B due to A B. the gravitational force on C due to A has the same magnitude as the gravitational force on A due to C C. the rope force on A due to B has the same magnitude as the electrical force on B due to A D. the rope force on B due to A has the same magnitude as the gravitational force on A due to C
A red apple will appear black when illuminated with
A) blue light. B) cyan light. C) yellow light. D) magenta light. E) none of the above
A bullet is fired with a certain velocity at an angle ? above the horizontal at a location where g = 10.0 m/s2. The initial x- and y-components of its velocity are 86.6 m/s and 50.0 m/s respectively
At what angle is the bullet fired above the horizontal? A) 45.0° B) 60.0° C) 30.0° D) 90.0° E) 75.0°
When light strikes a transparent medium, some light is reflected and some is ______________
Fill in the blank(s) with correct word